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Other than standard D8 are there support for multiple flow algorithms like FD8, DEMON, Dinfinity etc?

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You might want to look at TauDEM. – Chad Cooper Apr 16 '13 at 14:33
Or Whitebox GAT. – traggatmot Jan 4 '15 at 2:32
up vote 7 down vote accepted

The Flow Direction tool in Spatial Analyst only supports the D8 flow direction model, as stated in the How flow direction works page:

There are eight valid output directions relating to the eight adjacent cells into which flow could travel. This approach is commonly referred to as an eight-direction (D8) flow model and follows an approach presented in Jenson and Domingue (1988).

In addition, the Flow Accumulation and Flow Length tools only support D8 flow direction rasters as input.

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